The USS Fort Worth, a littoral combat ship, is "prepared to deploy from the region from Singapore," spokesman Rear Admiral John Kirby told CNN.
"That ship can be ready to sail in a day or two," Kirby said.
An American destroyer, the USS Sampson, has already deployed to the area to aid with international efforts to find debris and bodies from the passenger plane that disappeared with 162 people on board.
Searcher today spotted debris and bodies at sea that were believed to be from AirAsia Flight QZ8501, which disappeared en route from Indonesia's second city Surabaya to Singapore amid a storm on Sunday.
All indications suggested the jet crashed in the Java Sea southwest of the island of Borneo, officials said.